Railway



(No Model.) 4 Sheets-Sheet 1. E. M. BOYNTON.

RAILWAY Patented Mar. 25, 1890.

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(No Model.) 4 Sheets-Sheet 2.

E. M. BOYNTON. RAILWAY.

No. 424,168. Patented Mar. 25, 1890.

WITNESSES: INVENTOR A TT ORNE Y E. M. BOYNTON. RAILWAY 4 Sheets-Sheet 3.

(No Model.)

7 WNVENTOH JAM Pented Mar. 25, 1890.

AJ TORNEY I (No Model.) Sheets-Sheet .4. E. M. BOYNTON.

RAILWAY. 4

No. 424,168. Patented Mar. 25, 1890.

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ATTORNEY UNITED STATES PATENT OFFICE.

EBEN MOODY BOYN'ION, OF VEST NEVBURY, MASSACHUSETTS.

RAILWAY.

SPECIFICATION forming part of Letters Patent No. 424,168, dated March 25, 1890.

Application filed January 6, 1890.

* propelled by electric motors, but also adapted for trains operated by steam-motors.

The invention consists, essentially, of a skeleton tube '(or tubes) supported 011 suitable columns and strengthened by circumferential bands, as hereinafter set forth and claimed.

Reference is to be had'to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a side elevation of my improved single-tube structure for a single track. Fig. 2 is aplan of the tubular portion of the same. Fig. 3 is a sectional elevation on line at .90, Fig. 1, looking in the direction of the arrow. Fig. 4 is a cross-section on line y y,

Fig. 1. Fig. 5 represents a column with superimposed frames designed for supporting three single-track tubes. Fig. 6 represents a side elevation of my improved double-decked tubular structure and supporting-column for four tracks. Fig. 7 is an end elevation of the same. Fig. 8 is an elevation of a column with end View of tube for two tracks.

In the drawings, A represents my singletrack skeleton metal tube, preferably of elliptical cross-section, composed of longitudinal girders or sleepers a, opposite side bars I), overhead guide-rail c, and track-railed, the latter being properly secured on the sleepers a. All these parts are parallel with each other and designed to be rigidly secured in the positions best shown in Figs. 1 and 2 to the inner peripheries of the bands f, that are preferably of T-iron, for the sake of combined strength and lightness. These strengthening-bands f may entirely encircle the group of parallel bars, rails, and sleepers, but, preferably, are not so arranged in a single-track tube, but their ends are brought down and Serial No, 336,055. (No model.)

firmly secured to the opposite sides of the sleepers or girders a, as indicated in Figs. 1 and 4. The methods of fastening together these bands and the other named parts of the tube, being matters of mechanical detail and not of invention,are not herein shown or described. This structure also embraces suitable diagonal tie-rods g, provided, preferably, with turn-buckles, (indicated at g, Fig. 1,) and also suitable cross bracing-rods it, that arosecured to the structure in the usual manner to sustain it against vertical or lateral stress. To support this tubular structure I set up in single line a series of columns B, at suitable distances apart.

The columns shown in Figs. 3 and 5 are designed for supporting a single skeleton tube for one track, and are surmounted by integral strong open frames O, of the same internal shape and dimensions as is the said tube in cross-section, as best shown in Fig. 3. These frames all serve, as will readily be seen, as auxiliary circumferential strengtheningbands, and the sleepers a, bars I), and guiderails c are designed to be suitably secured to them, and said frames are provided with suitable perforated lugs It, for holding the tie and brace rods of the structure.

A frame 0 may be surmounted with a staff D, supporting signal-lanterns Z Z, as shown in Fig. 3.

A column B, for supporting three independent single tracks with skeleton tubes of ellipticalcross-section likethat hereinbeforeshown and described, is shown in Fig. 5, wherein two open elliptical tube-supporting frames 0 are set side by side, while a third frame is centrally above them. This upper frame will be dispensed with when but two independent single tracks are required.

In Fig. 8 is shown another style of supporting-column B for a single tubular structure designed for two tracks. In this case both the column and the frame surmounting it are of lattice-work, and the opening of the frame is a parallelogram with rounded upper corners, and the skeleton tube supported by these columns will in cross-section be exactly of the shape and dimensions of the frame-openin In Figs. 6 and 7 it will be seen that my improved double-decked tubularskeleton structure for four tracks (two on each floor or deck) is constructed, essentially, after the same plan as are the single and double track tubes hereinbefore shown and described, with the exceptions that this skeleton tube is a parallelogram with rounded corners, as indicated in Fig. 7; that the circumferential bands f go entirely around the tube; that the tube has a lower and a central longitudinal girder o of lattice-work, across which are fixed crossties 3, upon which the track-rails d are secured, and the tie-rods gin this form of structure are shown differently arranged or located, though I do not confine myself to this special arrangement of them, designing always to apply tie and brace rods in the most effective manner.

I am aware of the United States Patent No. 100,893, wherein the railway side bars eX- tend below the track and are there fastened to the supporting-posts to form braces, and do not claim that form of construction.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A tubular structure for elevated bicyclerailways, constructed substantially as herein shown and described, consisting of a skeleton tube composed of lower longitudincl girders or sleepers, track-rails, opposite side bars, and overhead guide-rails, all parallel with each other and secured together in position with circumferential strengthening-bands, the said tube being strengthened by braces and tierods and supported by suitable columns that are surmounted with frames which embrace said tube,,as set forth.

2. The combination, with a skeleton tubular structure for elevated bicycle-railways, of supporting-columns surmounted with open frames fixed entirely above the horizontal plane of the column tops, substantially as herein shown and described, said frames being made so as to correspond in interior shape and dimensions with the outside of said tube, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, in the presence of two witnesses, this 11th day of December, 1889."

E. MOODY' BOYNTON.

Witnesses:

JACOB J. STORER, WALTER R. BEACH. 

